8 Oct 1989: Quarterback Jim Harbaugh of the Chicago Bears looks to pass the ball during a game against the Tampa Bay Buccaneers at Tampa Stadium in Tampa, Florida. The Buccaneers won the game, 42-35.

Jim Harbaugh

1989: Quarterback Jim Harbaugh of the Chicago Bears confers with Greg Landry during a pre-season game at Soldier Field in Chicago, Illinois. Mandatory Credit: Allen Dean Steele /Allsport

Bears V Buccaneers

Quarterback Jim Harbaugh of the Chicago Bears (left) looks to pass the ball during a game against the Tampa Bay Buccaneers at Tampa Stadium in Tampa, Florida. The Buccaneers won the game, 32-31.

Jim Harbaugh

16 Sep 1990: Quarterback Jim Harbaugh of the Chicago Bears passes the ball during a game against the Green Bay Packers at Lambeau Field in Green Bay, Wisconsin. The Bears won the game, 31-13.

COLTS AT RAIDERS

22 OCT 1995: QUARTERBACK JIM HARBAUGH OF THE THE INDIANAPOLIS COLTS DURING THE COLTS 30-17 LOSS TO THE OAKLAND RADIERS AT THE OAKLAND ALAMEDA COLISEUM IN OAKLAND, CALIFORNIA. Mandatory Credit: Al Bello/Allsport

Colts v Cowboys

15 Sep 1996: Quarterback Jim Harbaugh of the Indianapolis Colts tilts his head back as he cools his face at the mist machine before the start of the Colts game against the Dallas Cowboys at Texas Stadium in Irving, Texas. Mandatory Credit: Brian Bahr/A

COLTS V RAIDERS

22 OCT 1995: INDIANAPOLIS QUARTERBACK JIM HARBAUGH IS CHASED DOWN BY OAKLAND DEFENSIVE LINEMAN CHESTER MCGLOCKTON DURING THE FIRST QUARTER OF THE RAIDERS GAME VERSUS THE COLTS AT THE OAKLAND COLESIUM IN OAKLAND, CALIFORNIA. THE RAIDERS BEAT THE COLTS 30

31 Dec 1995: Quarterback Jim Harbaugh of the Indianapolis Colts runs down the field during a game against the San Diego Chargers at Jack Murphy Stadium in San Diego, California. The Colts won the game 35-20. Mandatory Credit: Stephen Dunn /Allsport

Jim Harbaugh

26 Nov 1995: Quarterback Jim Harbaugh of the Indianapolis Colts runs down the field during a game against the Miami Dolphins at the RCA Dome in Indianapolis, Indiana. The Colts won the game 36 - 28. Mandatory Credit: Matthew Stockman /Allsport

Jim Harbaugh

21 Oct 1995: Quarterback Jim Harbaugh of the Indianapolis Colts moves the ball during a game against the Oakland Raiders at the Oakland-Alameda County Coliseum in Oakland, California. The Raiders won the game, 30-17. Mandatory Credit: Jed Jacobsohn /Al

Jim Harbaugh

19 Nov 1995: Quarterback Jim Harbaugh of the Indianapolis Colts looks to pass the ball during a game against the New England Patriots at Foxboro Stadium in Foxboro, Massachusetts. The Patriots won the game, 24-10. Mandatory Credit: Rick Stewart /Allspo

Jim Harbaugh

21 Oct 1995: Quarterback Jim Harbaugh of the Indianapolis Colts stands behind center during a game against the Los Angeles Raiders at the Los Angeles Memorial Coliseum in Los Angeles, California. The Raiders won the game, 30-17.

Jim Harbaugh

27 Jul 1996: Quarterback Jim Harbaugh of the Indianapolis Colts looks on during the Hall of Fame Game against the New Orleans Saints at Fawcett Stadium in Canton, Ohio. The Colts won the game, 10-3.

Jim Harbaugh

21 Oct 1995: Quarterback Jim Harbaugh of the Indianapolis Colts stands behind center during a game against the Los Angeles Raiders at the Los Angeles Memorial Coliseum in Los Angeles, California. The Raiders won the game, 30-17.

Jim Harbaugh

21 Oct 1995: Quarterback Jim Harbaugh of the Indianapolis Colts looks on during a game against the Los Angeles Raiders at the Los Angeles Memorial Coliseum in Los Angeles, California. The Raiders won the game, 30-17.

Jim Harbaugh

21 Oct 1995: Quarterback Jim Harbaugh of the Indianapolis Colts passes the ball during a game against the Oakland Raiders at the Oakland-Alameda County Coliseum in Oakland, California. The Raiders won the game, 30-17. Mandatory Credit: Jed Jacobsohn /A

Jim Harbaugh

19 Nov 1995: Quarterback Jim Harbaugh of the Indianapolis Colts looks on during a game against the New England Patriots at Foxboro Stadium in Foxboro, Massachusetts. The Patriots won the game, 24-10.

Jim Harbaugh

21 Oct 1995: Quarterback Jim Harbaugh of the Indianapolis Colts looks to pass the ball during a game against the Los Angeles Raiders at the Los Angeles Memorial Coliseum in Los Angeles, California. The Raiders won the game, 30-17.

KANSAS CITY, MO - JANUARY 7: Kansas City Chiefs defensive tackle Joe Phillips (L) watches while Indianapolis Colts quarterback Jim Harbaugh celebrates as time expires 07 January at the end of the AFC divisional playoff game at Arrowhead Stadium in Kansas City, Missouri. The Colts won 10-7 to advance to the AFC Championship game. (Photo credit should read BRIAN BAHR/AFP/Getty Images)

JIM HARBAUGH COLTS

JUL 1994: QUARTERBACK JIM HARBAUGH OF THE INDIANAPOLIS COLTS DURING THE COLTS TRAINING CAMP AT THE UNIVERSITY OF ANDERSON IN ANDERSON, INDIANA. Mandatory Credit: Gary Mook/ALLSPORT

Jim Harbaugh

14 Jan 1996: Quarterback Jim Harbaugh #4 of the Indianapolis Colts looks to pass against the Pittsburgh Steelers during a playoff game played at Three Rivers Stadium in Pittsburgh, Pennsylvania. The Steelers won the game, 20-16. Mandatory Credit: Rick S

27 Jul 1998: Head coach Ted Marchibroda of the Baltimore Ravens talks to quarterback Jim Harbaugh #4 during the 1998 Baltimore Ravens Training Camp at the Western Maryland College in Westminster, Maryland.

Jim Harbaugh #4

15 Aug 1998: Quarterback Jim Harbaugh #4 of the Baltimore Ravens runs with the ball during a pre-season game against the New York Jets at the Meadowlands in East Rutherford, New Jersey. The Ravens defeated the Jets 33-0. Mandatory Credit: Al Bello /Alls

Jim Harbaugh

6 Sep 1998: Quarterback Jim Harbaugh #4 of the Baltimore Ravens in action during the game against the Pittsburgh Steelers at the Memorial Stadium in Baltimore, Maryland. The Steelers defeated the Ravens 20-13. Mandatory Credit: Ezra O. Shaw /Allsport

Jim Harbaugh

29 Nov 1998: Quarterback Jim Harbaugh #4 of the Baltimore Ravens looks on during the game against the Indianapolis Colts at the Memorial Stadium in Baltimore, Maryland. The Ravens defeated the Colts 38-31. Mandatory Credit: Scott Halleran /Allsport

Jim Harbaugh #4

31 Oct 1999: Jim Harbaugh #4 of the San Diego Chargers scrambles with the ball as he is rushed by Derrick Thomas #58 of the Kansas City Chiefs at the Arrowhead Stadium in Kansas City, Missouri. The Chiefs defeated the Chargers 34-0. Mandatory Credit: Elsa Hasch /Allsport

Raiders v Chargers X Harbaugh

29 Oct 2000: Quarterback #4 Jim Harbaugh of the San Diego Chargers drops back to pass during their game against the Oakland Raiders at Qualcomm Stadium in San Diego, California. DIGITAL IMAGE. Mandatory Credit: Stephen Dunn/ALLSPORT

Jim Harbaugh #4

26 Nov 2000: Quarterback Jim Harbaugh #4 of the San Diego Chargers looks on from the sidelines during the game against the Kansas City Chiefs at the Qualcomm Stadium in San Diego, California. The Chargers defeated the Chiefs 17-16.Mandatory Credit: Stephen Dunn /Allsport

Jim Harbaugh #4

8 Oct 2000: Quarterback Jim Harbaugh #4 of the San Diego Chargers calls a time out during the game against the Denver Broncos at the Qualcomm Stadium in San Diego, California. The Broncos defeated the Chargers 21-7.Mandatory Credit: Stephen Dunn /Allsport

Jim Harbaugh #4

15 Oct 2000: Quarterback Jim Harbaugh #4 of the San Diego Chargers looks to pass the ball during the game against the Buffalo Bills at Ralph Wilson Stadium in Orchard Park, New York. The Bills defeated the Chargers 27-24.Mandatory Credit: Rick Stewart /Allsport

Jim Hargbaugh #4

24 Sep 2000: Quarterback Jim Hargbaugh #4 of the San Diego Chargers calls the count from the line of scrimmage during a game against the Seattle Seahawks at Qualcomm Stadium in San Diego, California. The Seahawks defeated the Chargers 20-12.Mandatory Credit: Stephen Dunn /Allsport

Jim Harbaugh #4

7 Nov 1999: Jim Harbaugh #4 of the San Diego Chargers passes the ball during a game against the Denver Broncos at the Qualcomm Stadium in San Diego, California. The Broncos defeated the Chargers 33-17.

Jim Harbaugh #9

25 Aug 2001: Jim Harbaugh #9 of the Detroit Lions warming up on the field during warm ups before the Pre-Season game against the Pittsburgh Steelers at Heinz Field in Pittsburgh, Pennsylvania.Mandatory Credit: Scott Halleran /Allsport

Jim Harbaugh #5 of the Carolina Panthers attempts to pass

9 Dec 2001: Quarterback Jim Harbaugh #5 of the Carolina Panthers attempts to pass the ball during the NFL game against the Buffalo Bills at Ralph Wilson Statium in Orchard Park, New York. The Bills defeated the Panthers 25-24. Mandatory Credit: Rick Stewart/Getty Images

USC Torjans v Stanford Cardinals

STANFORD, CA - NOVEMBER 15: Head coach Jim Harbaugh of the Stanford Cardinals looks on near the end of the game against the USC Torjans at Stanford Stadium on November 15, 2008 in Stanford, California. (Photo by Jed Jacobsohn/Getty Images)

USC Torjans v Stanford Cardinals

STANFORD, CA - NOVEMBER 15: Head coach Jim Harbaugh of the Stanford Cardinals talks with Tavita Pritchard #14 near the end of the game against the USC Torjans at Stanford Stadium on November 15, 2008 in Stanford, California. (Photo by Jed Jacobsohn/Getty Images)

USC v Stanford

STANFORD - NOVEMBER 15: Head coach Jim Harbaugh of Stanford Cardinals walks on the field during the game against the USC Trojans at Stanford Stadium on November 15, 2008 in Stanford, California. (Photo by: Jed Jacobsohn/Getty Images)

Stanford v USC

LOS ANGELES - OCTOBER 6: Alex Loukas #15 celebrates with head coach Jim Harbaugh of the Stanford University Cardinal after defeating the USC Trojans 24-23 at the Los Angeles Memorial Coliseum October 6, 2007 in Los Angeles, California. (Photo by Lisa Blumenfeld/Getty Images)

Stanford v USC

LOS ANGELES - OCTOBER 6: Head coach Jim Harbaugh of the Stanford Cardinal laughs with Lewis Johnson of Versus after the victory against the USC Trojans on October 6, 2007 at the Los Angeles Memorial Coliseum in Los Angeles, California. (Photo by Jeff Golden/Getty Images)

San Jose State Spartans v Stanford Cardinal

STANFORD, CA - SEPTEMBER 20: Head coach Jim Harbaugh of the Stanford Cardinals looks on against the San Jose State Spartans at Stanford Stadium on September 20, 2008 in Stanford, California. (Photo by Jed Jacobsohn/Getty Images)

San Jose State v Stanford

SAN FRANCISCO - SEPTEMBER 19: Stanford Cardinal head coach Jim Harbaugh walks on the field after their game against the San Jose State Spartans at Stanford Stadium on September 19, 2009 in Palo Alto, California. (Photo by Ezra Shaw/Getty Images)

Stanford v UCLA

PASADENA, CA - SEPTEMBER 11: Head Coach Jim Harbaugh of Stanford smiles before the game against UCLA at the Rose Bowl on September 11, 2010 in Pasadena, California. (Photo by Harry How/Getty Images)